TWI709491B - 酒精蒸發劑包材 - Google Patents
酒精蒸發劑包材 Download PDFInfo
- Publication number
- TWI709491B TWI709491B TW106111051A TW106111051A TWI709491B TW I709491 B TWI709491 B TW I709491B TW 106111051 A TW106111051 A TW 106111051A TW 106111051 A TW106111051 A TW 106111051A TW I709491 B TWI709491 B TW I709491B
- Authority
- TW
- Taiwan
- Prior art keywords
- density polyethylene
- linear low
- layer
- uniaxial alignment
- mesh structure
- Prior art date
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 87
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- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 109
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- 239000005977 Ethylene Substances 0.000 claims description 4
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Images
Classifications
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Abstract
本發明提供一種可維持強度,同時抑制透濕度或乙醇穿透度的降低之密封材及使用該密封材之酒精蒸發劑包材。
密封材具有網狀構造體與聚醯胺系樹脂膜。網狀構造體係具有2個以上包含有熱可塑性樹脂層與層積於該熱可塑性樹脂層的至少單面之直鏈狀低密度聚乙烯層之單軸配向體,以2個以上單軸配向體的配向軸呈交叉之方式,而透過直鏈狀低密度聚乙烯層來將該等2個以上單軸配向體加以層積或織成所構成。聚醯胺系樹脂膜係介設有直鏈狀低密度聚乙烯層而層積於網狀構造體。網狀構造體與聚醯胺系樹脂膜係藉由網狀構造體之熔融後的直鏈狀低密度聚乙烯層而被接著。
Description
本發明關於一種層積有網狀構造體與聚醯胺系樹脂膜之密封材,以及使用該密封材之酒精蒸發劑包材。
專利文獻1已揭示一種層積有尼龍製膜與熔點低於尼龍之熱可塑性樹脂所構成的不織布之包裝片材。又,係記載一種將酒精蒸發劑封入該包裝片材所形成的袋內部之酒精蒸發劑用包裝袋。
[先前技術文獻]
[專利文獻]
專利文獻1:日本特開2003-211604號公報
然而,專利文獻1中係以圖案乾式積層法來層積尼龍製膜與不織布。但由於係以接著劑來將尼龍製膜與不織布加以貼合,故會有不織布因接著劑而阻塞,導致透濕度或乙醇穿透度降低的情況。因而,若為了防止阻塞而使不織布的網眼較大,卻會損及包裝片材的強度。於是,便有難以同時保持包裝片材的透濕度或乙醇穿透度與包裝片材的強度之課題。
又,雖然將包裝片材形成為袋狀之際,以及將酒精蒸發劑封入包裝袋之際係進行熱封來加以接著,但由於必須使熱封層介設在接著部,故亦會有製造裝置或製造工序變得複雜化之課題。
本發明係鑑於上述情事所發明者,其目的在於提供一種可維持強度,同時抑制透濕度或乙醇穿透度的降低之密封材及使用該密封材之
酒精蒸發劑包材。
依據本發明之一樣態,係提供一種密封材,具備:網狀構造體,係具有2個以上包含有熱可塑性樹脂層與層積於該熱可塑性樹脂層的至少單面之直鏈狀低密度聚乙烯層之單軸配向體,以該2個以上單軸配向體的配向軸呈交叉之方式,而透過該直鏈狀低密度聚乙烯層來將該2個以上單軸配向體加以層積或織成所構成;以及聚醯胺系樹脂膜,係介設有該直鏈狀低密度聚乙烯層而層積於該網狀構造體;該網狀構造體與該聚醯胺系樹脂膜係藉由該網狀構造體之熔融後的該直鏈狀低密度聚乙烯層而被接著。
又,依據本發明之一樣態,係提供一種酒精蒸發劑包材,係內包有酒精蒸發劑且經熱封之袋狀的酒精蒸發劑包材;具備:網狀構造體,係含有2個以上包含有熱可塑性樹脂層與層積於該熱可塑性樹脂層的至少單面且分子鏈中具有長鏈分支之直鏈狀低密度聚乙烯層之單軸配向體,以該2個以上單軸配向體的配向軸呈交叉之方式,而透過該直鏈狀低密度聚乙烯層來將該2個以上單軸配向體加以層積或織成所構成;聚醯胺系樹脂膜,係介設有該直鏈狀低密度聚乙烯層而層積於該網狀構造體;以及印刷面,係形成於該聚醯胺系樹脂膜之與該網狀構造體的層積面側;以該網狀構造體側作為袋的內面而內包有酒精蒸發劑,並以該網狀構造體的該直鏈狀低密度聚乙烯層作為熱封層來將該網狀構造體彼此互相接著而形成為袋狀。
依據本發明之密封材,由於係將網狀構造體與聚醯胺系樹脂膜藉由網狀構造體之熔融後的直鏈狀低密度聚乙烯層來直接貼合,故不需要接著劑。於是,便不會有因接著劑而損及透濕度或乙醇穿透度的情況,且亦不須為了防止阻塞而使不織布的網眼較大,故亦可維持拉伸強度或穿刺強度。
又,依據本發明之酒精蒸發劑包材,將密封材形成為袋狀之際,可使網狀構造體之袋內面側的直鏈狀低密度聚乙烯層作為熱封層來加以接著。於是,由於不需熱封層,故可簡化製造裝置或製造工序。並且,由於印刷面不會成為酒精蒸發劑包材的外側(為內面印刷),故連同食品一起封入食品包裝容器內的情況,食品也不會接觸到酒精蒸發劑包材的油墨,可防止油墨的脫落或轉印到食品。
1‧‧‧網狀不織布
2‧‧‧分裂網(網狀膜)
21‧‧‧幹纖維
22‧‧‧枝纖維
2-1‧‧‧縱網
2-2‧‧‧橫網
3‧‧‧凹槽網
6、6’‧‧‧熱可塑性樹脂層(網狀膜)
7-1、7-1’‧‧‧茂金屬LLDPE層(接著層)
7-2、7-2’‧‧‧茂金屬LLDPE層(接著層)
8‧‧‧單軸配向帶體
9‧‧‧不織布
10‧‧‧織布
11‧‧‧密封材
11a、11b、11c‧‧‧密封材的邊
12‧‧‧網狀構造體
12a、13a‧‧‧表面區域
13‧‧‧尼龍製膜(聚醯胺系樹脂膜)
14‧‧‧印刷面
15‧‧‧酒精蒸發劑包材
16‧‧‧酒精蒸發劑
L、T‧‧‧配向軸
圖1A為本發明第1實施型態相關之密封材的立體圖。
圖1B為本發明第1實施型態相關之密封材的剖視圖。
圖2係顯示圖1A及圖1B所示之密封材的製造方法之工序圖。
圖3A係顯示本發明第2實施型態,為使用圖1A及圖1B所示的密封材之酒精蒸發劑包材的立體圖。
圖3B係顯示本發明第2實施型態,為使用圖1A及圖1B所示的密封材之酒精蒸發劑包材的剖視圖。
圖4係顯示圖3A及圖3B所示之酒精蒸發劑包材的製造方法之工序圖。
圖5係顯示圖1A及圖1B所示之密封材中所使用的網狀構造體一例之網狀不織布的平面圖。
圖6A係顯示構成圖5所示的網狀不織布之單軸配向體的構成例之立體圖。
圖6B係顯示構成圖5所示的網狀不織布之單軸配向體的構成例之部分放大立體圖。
圖7A係顯示構成圖5所示的網狀不織布之單軸配向體的構成例之立體圖。
圖7B係顯示構成圖5所示的網狀不織布之單軸配向體的構成例之部分放大立體圖。
圖8係用以說明圖6A及圖6B所示之單軸配向體的製造方法之立體
圖。
圖9係用以說明網狀不織布的第1製造方法之立體圖。
圖10係用以說明網狀不織布的第2製造方法之立體圖。
圖11係顯示作為網狀構造體的其他範例之單軸配向帶體所構成的不織布之平面圖。
圖12係顯示作為網狀構造體的其他範例之單軸配向帶體所構成的織布之立體圖。
圖13係顯示本發明之實施型態相關的酒精蒸發劑包材中,準備材料構成相異的複數樣品,來測量強度、透濕度及乙醇穿透度等的測量結果之圖式。
以下,參閱圖式來加以說明本發明之實施型態。惟本發明並未限定於以下的實施型態。
[第1實施型態]
圖1A及圖1B係顯示本發明第1實施型態相關之密封材,圖1A為立體圖,圖1B為沿圖1A的X-X’線之剖視圖。密封材11為網狀構造體12與聚醯胺系樹脂膜,即尼龍製膜13之層積構造。該網狀構造體12與尼龍製膜13係藉由網狀構造體12之熔融後的直鏈狀低密度聚乙烯層而被接著。聚醯胺系樹脂膜為具有酒精穿透性者,較佳地,為乙醇穿透度300g/m2.24hr以上者。此外,只要是能夠確保酒精穿透性,則亦可為層積有含聚醯胺系樹脂的複數材料之膜。
網狀構造體12係具有2個以上包含熱可塑性樹脂層與層積於該熱可塑性樹脂層的至少單面之直鏈狀低密度聚乙烯層的單軸配向體。2個以上單軸配向體係單軸配向網狀膜或單軸配向帶體的至少其中一者。然後,以該等2個以上單軸配向體的配向軸呈交叉之方式,透過直鏈狀低密度聚乙烯層來將2個以上單軸配向體加以層積或織成所構成。直鏈狀低密度聚乙烯層係具有接著層的功能,可將配向軸呈交叉般所配置
之2個以上單軸配向體加以接著。有關網狀構造體12的各種例子或具體的構成例將於後述中詳細說明,但概略來說係如以下般的構成。
例如,單軸配向體係包含層積於熱可塑性樹脂層的一面之第1直鏈狀低密度聚乙烯層,與層積於該熱可塑性樹脂層的另一面之第2直鏈狀低密度聚乙烯層。該等第1及第2直鏈狀低密度聚乙烯層係分子鏈中具有長鏈分支之直鏈狀低密度聚乙烯。或者,當網狀構造體12係將2個以上單軸配向體織成而形成的情況,直鏈狀低密度聚乙烯層亦可為以茂金屬觸媒來聚合後之直鏈狀低密度聚乙烯。
舉一例,上述第1及第2直鏈狀低密度聚乙烯層係分別為熔體流動速率(MFR:Melt Flow Rate)0.5~10g/10min,密度0.910~0.940g/cm3的直鏈狀低密度聚乙烯。
此情況之網狀構造體12係滿足單位面積質量為5~70g/m2,直鏈狀低密度聚乙烯層的厚度為2~10μm,單軸配向體間的接著力為10~60N,拉伸強度為20~600N/50mm的特性。
另一方面,尼龍製膜13係介設有直鏈狀低密度聚乙烯層而層積於網狀構造體12,藉由熔融後的直鏈狀低密度聚乙烯層而被接著於該網狀構造體12。尼龍製膜13之與網狀構造體12的層積面側係形成有印刷面14。該等網狀構造體12與尼龍製膜13之接著面的至少一者(本例中為兩者)的表面區域12a、13a係藉由電暈處理而導入有極性官能基。
圖2係顯示圖1A及圖1B所示之密封材的製造方法之工序圖。首先,準備網狀構造體12與尼龍製膜13(ST1),並以凹版印刷機進行印刷而於尼龍製膜13形成印刷面14(ST2)。接下來,於網狀構造體12與尼龍製膜13(印刷面)的接著面進行電暈處理(潤濕指數35達因以上),來將極性官能基導入表面區域12a、13a,而將處理基材表面改質來提高親水性(ST3)。之後,藉由熱積層法來將網狀構造體12與尼龍製膜13貼合(ST4)。此接著工序中,係在將網狀構造體12與尼龍製膜13層積並挾置之狀態下,使其通過對向配置之一對加熱滾輪間,藉此以100~130℃左右的溫度來使網狀構造體12的直鏈狀低密度聚乙烯熔融並貼合。
如此般地,不僅可將直鏈狀低密度聚乙烯作為將單軸配向體接合
用的接著層來加以使用,且亦可使其熔融來利用在將網狀構造體12與尼龍製膜13接著。因此,便可將難以接著的網狀構造體12與尼龍製膜13直接貼合,而不需接著劑。於是,便不會有因接著劑導致網狀構造體12阻塞,而損及透濕度或乙醇穿透度的情況,且亦不須使不織布的網眼較大,故亦可維持拉伸強度或穿刺強度。甚且,由於不使用嫘縈混抄紙等的耐水耐油紙,故無紙粉或起毛球,而具有防塵性(lint free)。又,由於係使用無孔尼龍膜,故形成為袋狀來包入粉體時亦不會有粉體外漏的情況。
[第2實施型態]
圖3A及圖3B係顯示本發明之第2實施型態,係顯示使用圖1A及圖1B所示的密封材之酒精蒸發劑包材。圖3A為酒精蒸發劑包材的立體圖,圖3B為沿著圖3A的Y-Y’線之剖視圖。此外,圖3B中,係將導入有極性官能基之表面區域12a、13a及印刷面14予以省略,而以網狀構造體12與尼龍製膜13的2層構造來表現出密封材11。
酒精蒸發劑包材15係內包有酒精蒸發劑16且經熱封之袋狀的包材。該酒精蒸發劑包材15係由網狀構造體12與尼龍製膜13之層積構造的密封材11所形成。網狀構造體12與尼龍製膜13之層積面的尼龍製膜13係形成有印刷面14。然後,使網狀構造體12側為袋的內面來將酒精蒸發劑16內包,並以網狀構造體12之袋內面側的直鏈狀低密度聚乙烯層作為熱封層來接著,而形成為袋狀。圖3A及圖3B中雖係顯示將一片密封材11對折且沿著其餘的三邊11a、11b、11c來接著而將酒精蒸發劑16密封之範例,但亦可沿著四邊來將二片密封材接著。
圖4係顯示圖3A及圖3B所示之酒精蒸發劑包材15的製造方法之工序圖。圖4係顯示從密封材11的製造到酒精蒸發劑包材15的製造為止之工序。藉由上述步驟ST1~ST4的工序來形成密封材11後,將貼合原料裁切成規定的袋尺寸(ST5)。接著,將裁切後之貼合原料對折,且藉由熱熔接來將正交於折線的二邊接著而成為袋狀,並充填酒精蒸發劑16(ST6)。此時,係使網狀構造體12側的面為內側來將密封材11對折,並以網狀構造體12的直鏈狀低密度聚乙烯層作為熱封層來將正交於折線
之二邊11a、11c接著。接下來,將酒精蒸發劑16內包在袋內之狀態下,使網狀構造體12的直鏈狀低密度聚乙烯層作為熱封層來將剩餘的一邊11b接著而將酒精蒸發劑16密封(ST7)。
依據上述般的構成及製造方法,除了將直鏈狀低密度聚乙烯層利用在單軸配向體彼此的接合、及網狀構造體12與尼龍製膜13的熔接外,並且,將密封材11形成為袋狀之際,尚可使直鏈狀低密度聚乙烯層作為熱封層來將袋內面的網狀構造體12接著。於是,由於不需熱封層,故可簡化製造裝置或製造工序。再者,由於為內面印刷,故連同食品一起封入食品包裝容器內的情況,食品不會接觸到印刷面14的油墨,可防止油墨的脫落或轉印到食品。
接下來,詳細說明上述網狀構造體12的各種範例或具體的構成例。
首先說明構成網狀構造體12之單軸配向體的層構成及各層的組成。單軸配向體係包含有熱可塑性樹脂層與層積於該熱可塑性樹脂層的至少單面之直鏈狀低密度聚乙烯層所構成。
熱可塑性樹脂層係以熱可塑性樹脂為主成分的層。熱可塑性樹脂可舉出有割纖性良好的聚乙烯、聚丙烯等之聚稀烴及該等之共聚合體,較佳地,為高密度聚乙烯。
熱可塑性樹脂層厚度未特別限定,使直鏈狀低密度聚乙烯層的厚度為後述所欲範圍的情況,可以達成既定單位面積質量的方式來適當決定。熱可塑性樹脂的厚度可約為20~70μm,較佳為25~60μm。另外,此厚度為單軸配向後的層厚度。
直鏈狀低密度聚乙烯層係以熔點較該熱可塑性樹脂要低的直鏈狀低密度聚乙烯為主成分所構成之層。直鏈狀低密度聚乙烯層的熔點與該熱可塑性樹脂層的熔點差異因製造上的理由,需要為5℃以上,較佳為10~50℃。由於該直鏈狀低密度聚乙烯層係具有如上所述般地作為與其他單軸配向體的接著層之功能,故亦有稱為接著層的情況。
直鏈狀低密度聚乙烯較佳係以茂金屬觸媒所聚合者。茂金屬觸媒係活性點較為單一而被稱為單點觸媒種類的觸媒,係至少含有含環戊二烯骨幹之配位子的週期表第IV族過渡金屬化合物之觸媒。代表性者
可舉出有使過渡金屬之茂金屬配位化合物(例如鋯或鈦之雙環戊二烯基配位化合物)與作為助觸媒之甲基鋁氧烷等反應所獲得的觸媒,係將各種配位化合物、助觸媒、載體等做各種組合後的均勻或不均勻觸媒。茂金屬觸媒舉出有例如日本特開昭58-19309號公報、特開昭59-95292號公報、特開昭59-23011號公報、特開昭60-35006號公報、特開昭60-35007號公報、特開昭60-35008號公報、特開昭60-35009號公報、特開昭61-130314號公報、特開平3-163088號公報等所公知之物。
直鏈狀低密度聚乙烯可在此般茂金屬觸媒的存在下,以氣相聚合法、漿料聚合法、溶液聚合法等的製造程序,藉由將乙烯及α-稀烴共聚合來加以獲得。共聚合體中,較佳係使用碳數為4~12之α-稀烴。具體而言,可舉出有丁稀、戊稀、己稀、庚稀、辛稀、壬稀、癸稀等。
直鏈狀低密度聚乙烯更具體的製造條件係在實質上斷絕氧、水等的狀態下,在從己烷、庚烷等脂肪族碳化氫;苯、甲苯、二甲苯等之芳香族碳化氫;環己烷、甲基環己烷等之脂環族碳化氫等所選出之非活性碳化氫溶媒的存在下,藉由進行乙烯及α-稀烴之聚合來加以製造,聚合溫度可由0~300℃的範圍,聚合壓力可由大氣壓~約100kg/cm2的範圍,聚合時間可由1分鐘~10小時的範圍來分別加以選擇。
使用茂金屬觸媒所聚合之直鏈狀低密度聚乙烯與例如以齊格勒型觸媒或菲利浦型觸媒所獲得之共聚合物的性狀有所差異,分子量分布會較窄,而具有分子鏈之分支密度幾乎相等的特徵。茂金屬觸媒所致之直鏈狀低密度聚乙烯的聚合係在例如日本特開2009-1776號公報或本案申請人之日本特開平8-169076號公報有所詳述,該業者可基於該等公報或其他習知技術而在茂金屬觸媒的存在下製造出直鏈狀低密度聚乙烯。或者,亦可使用市售物來作為以茂金屬觸媒所聚合之直鏈狀低密度聚乙烯。
直鏈狀低密度聚乙烯更佳地為以茂金屬觸媒所聚合之長鏈分支型直鏈狀低密度聚乙烯。具有碳數超過20之長鏈分支的直鏈狀低密度聚乙烯兼具有柔軟性及加工性,故從網狀構造體之製造觀點,特別有利。長鏈分支型直鏈狀低密度聚乙烯可以公知方法由該業者來適當合成,
亦可使用市售物來作為長鏈分支型直鏈狀低密度聚乙烯。長鏈分支的導入方法舉出有例如使用茂金屬系觸媒,直接將乙烯與α-稀烴共聚合之方法。此情況之茂金屬系觸媒舉出有使用具有交聯雙環戊二烯基配位子之配位化合物的範例、使用具有交聯茚配位子之配位化合物的範例、使用拘束幾何觸媒的範例、使用具有苯並茚配位子之配位化合物的範例。又,使用具有交聯(環戊二烯)(茚)配位子之配位化合物的方法較佳於長鏈分支的生成。該等方法中,可適當選擇配位化合物的種類或觸媒調製條件、聚合條件來控制長鏈分支的質與量。
又,此直鏈狀低密度聚乙烯的熔體流動速率如前述般較佳為0.5~10g/10min,更佳為1~5g/10min。熔體流動速率未達0.5g/10min時,會有成形時的壓力負荷變大的情況,又,超過10g/10min時,則有成膜穩定性較低的不良情況。又,密度如前述般較佳為0.910~0.940g/cm3,更佳為0.915~0.930g/min3。在此範圍之外的情況,會使得單軸配向體間的熱熔接變得困難,而有不良的情況。
直鏈狀低密度聚乙烯層的厚度如前述般為2~10μm,較佳為2~9μm,更佳為2~7μm。此厚度未達2μm時,無法得到充足的接著力。另一方面,超過10μm時,其結果會使得拉伸強度降低,變得柔軟而無法獲得作為充分補強材的效果。另外,此厚度為單軸配向後之層厚度。
構成熱可塑性樹脂層、直鏈狀低密度聚乙烯層之各自樹脂在不損及其特性的範圍下,亦可含有高壓法低密度聚乙烯(LDPE)等之上述主成分以外的樹脂,亦可含有公知的添加劑。添加劑可舉出有例如氧化防止劑、耐候劑、潤滑劑、抗凝結劑、帶電防止劑、防霧劑、無滴劑、顏料、充填物等。
直鏈狀低密度聚乙烯層可僅層積在熱可塑性樹脂層之單面,亦可層積在熱可塑性樹脂層的雙面。在層積於熱可塑性樹脂層的雙面之情況,可分別將其稱為第1直鏈狀低密度聚乙烯層、第2直鏈狀低密度聚乙烯層。第1直鏈狀低密度聚乙烯層與第2直鏈狀低密度聚乙烯層,其組成、厚度可為相同,亦可為相異,第1、第2直鏈狀低密度聚乙烯層各自會滿足上述厚度及熔體流動速率,較佳係以與熱可塑性樹脂層
的關係來滿足上述組成條件。
單軸配向體可藉由將具有此般組成及層構成之多層膜單軸配向來加以獲得。單軸配向體可為例如單軸配向網狀膜,或單軸配向帶體。關於該等之詳細樣態及製法將於後述。本發明之網狀構造體係將至少2個之單軸配向體層積或織成來加以構成,至少2個之單軸配向體係以其配向軸交叉之方式來層積或織成。此時,2個之單軸配向體可為同一組成及層構成,亦可為不同組成及層構成。依單軸配向體的特性,網狀構造體可為網狀不織布的情況,亦可為織布的情況。又,配向軸的交叉樣態可以為幾乎正交者,亦可為以既定角度交叉者。將單軸配向體層積3個以上的情況,3個以上之配向體的配向軸可以既定角度來加以交叉。以下,便就單軸配向體之樣態及其組合所致之網狀構造體的構成例來加以說明。
<第1網狀構造體:層積分裂網與凹槽網所構成之不織布>
第1網狀構造體係將於縱向單軸延伸之多層膜割纖後,擴幅所獲得的單軸配向體,與在多層膜寬度方向形成凹槽後於寬度方向單軸延伸所獲得的單軸配向體,以配向方向略正交之方式來加以層積所得之不織布。圖5係顯示圖1A及圖1B所示密封材11中所使用之網狀構造體12的一範例之網狀不織布1。網狀不織布1係將為單軸配向體一範例之分裂網2的配向軸L與為單軸配向體另一範例之凹槽網3的配向軸T以相互交叉之方式來經緯層積而加以形成。然後,相鄰之分裂網2及凹槽網3之接觸部位彼此係以面接著來加以接合。
圖6A、圖6B及圖7A、圖7B分別顯示構成圖5所示之網狀不織布1的分裂網2及凹槽網3。圖6A所示之分裂網2係將在熱可塑性樹脂層的單面或雙面層積直鏈狀低密度聚乙烯層所構成的多層膜單軸延伸於縱向(分裂網2之配向軸L的軸向),並於縱向割纖且擴幅所形成的單軸配向網狀膜。
由網狀膜所構成之單軸配向體一範例之分裂網2可藉由多層膨脹成形、多層T模法等製造方法來加以製造。具體而言,係在熱可塑性樹脂層雙面形成層積有較佳地為直鏈狀低密度聚乙烯一範例之以茂金
屬觸媒所合成的直鏈狀低密度聚乙烯層之多層膜。以下在本說明書中,係將以茂金屬觸媒所聚合之直鏈狀低密度聚乙烯層稱為茂金屬LLDPE層。將此多層膜於縱向延伸至少3倍後,於同方向使用切割器割纖呈千鳥格紋狀(切割處理)而成為網狀膜,進一步地擴幅呈既定寬度來加以形成。藉由擴幅會形成幹纖維21及枝纖維22,而成為圖示般的網狀體。此分裂網2會橫跨寬度方向整體而於縱向具有較高強度。
圖6B係以圖6A之一點鏈線所包圍區域100之放大立體圖,分裂網2係在熱可塑性樹脂層6雙面層積有熔點較此熱可塑性樹脂要低之茂金屬LLDPE層7-1,7-2的3層構造。茂金屬LLDPE層7-1,7-2之一者會在網狀不織布1形成時,在與凹槽網3一同地經緯層積之際作為網相互的接著層而發揮功能。
圖7A所示之凹槽網3係在於熱可塑性樹脂層雙面層積有茂金屬LLDPE層之多層膜於橫向(凹槽網3之配向軸T的軸向)置入多數凹槽後,於橫向單軸延伸所形成的網狀膜。詳細而言,凹槽網3係在除了上述多層膜之兩邊部的部分,藉由例如熱刃等來平行地形成千鳥格紋等之斷續的凹槽後,於橫向延伸來加以形成。此凹槽網3於橫向具有較高的強度。
圖7B係圖7A以一點鏈線所包圍區域101之放大立體圖,凹槽網3係由在熱可塑性樹脂層6’雙面層積有熔點較此熱可塑性樹脂要低的茂金屬LLDPE層7-1’,7-2’之3層構造所構成。該等茂金屬LLDPE層7-1’,7-2’之一者會在網狀不織布1形成時,在與分裂網2一同地經緯層積之際作為網相互的接著層而發揮功能。
分裂網的形狀除了圖7A及圖7B所示形狀以外,係具備相互平行延伸之幹纖維,及將相鄰幹纖維彼此連接之枝纖維,上述幹纖維係幾乎配列於單方向之單軸配向體,可為在具有與分裂網2相同構成之生膜於寬度方向形成多數凹槽後,於寬度方向以和分裂網2同樣的延伸倍率來延伸所得之物。亦即,俯視觀之時,具有相對於分裂網2而旋轉±90°之圖案或類似於此之圖案的凹槽網亦可作為單軸配向網狀膜來使用。
另外,圖6A、圖6B及圖7A、圖7B所示之單軸配向體的3層構造乃是一範例,例如在分裂網2中,可省略茂金屬LLDPE層7-1,而為熱可塑性樹脂層6與茂金屬LLDPE層7-2之雙層構造。又,凹槽網3中,可省略茂金屬LLDPE層7-1’,而為熱可塑性樹脂層6’與茂金屬LLDPE層7-2’之雙層構造。從而,網狀不織布1可為該等2層或3層之分裂網與凹槽網之任意組合。將2層構造的單軸配向體彼此相接合時,係將一者的茂金屬LLDPE層使用於熱可塑性樹脂層彼此的接合,而將另一者的茂金屬LLDPE層使用於與尼龍製膜的接著,藉此來製作密封材。
本例之網狀不織布1的單位面積質量如前述般為5~70g/m2,較佳為7~65g/m2,更佳為10~60g/m2。本單位面積質量可藉由改變熱可塑性樹脂層6之厚度來加以控制。又,本例之網狀不織布1的拉伸強度如前述般為20~600N/50mm,較佳為30~550N/50mm,更佳為50~500N/50mm。此拉伸強度可藉由改變熱可塑性樹脂層6之厚度來加以控制。本例之拉伸強度係稱為縱向的拉伸強度。
單軸配向體至少一者之表層係使用接著力強的直鏈狀低密度聚乙烯層,透過此直鏈狀低密度聚乙烯層來層積單軸配向體,可在單軸配向體之間確保10~60N的接著力。此處所謂的接著力係在縱200mm×橫50mm之試驗片,使用拉伸試驗機所測量的數值,係以拉伸速度500mm/min朝既定方向拉伸,以變位40mm~90mm之荷重指示值的振幅平均值來測定的數值。直鏈狀低密度聚乙烯層與一般低密度聚乙烯層(LD)相比較為柔軟,藉由讓直鏈狀低密度聚乙烯層的厚度薄如2~10μm,便可提高單軸配向體整體厚度中之熱可塑性樹脂層的比率,而維持拉伸強度。
接著,就圖5所示之網狀不織布1的製造方法,使用圖8及圖9來加以說明。圖8係概略顯示分裂網2之製造工序。又,圖9係概略顯示將凹槽網3層積在分裂網2來製造網狀不織布1之工序。
圖8中,(1)多層膜的製膜工序中,係將熱可塑性樹脂供給至主押出機111,將作為接著層樹脂之直鏈狀低密度聚乙烯樹脂供給至2台副
押出機112,112,以主押出機111所押出之熱可塑性樹脂作為中心層,以2台副押出機112,112所押出之接著層樹脂作為內層及外層,藉由膨脹成形來製作多層膜。於是,熱可塑性樹脂便會構成由圖6A及圖6B所示之熱可塑性樹脂所構成的層6,直鏈狀低密度樹脂會構成圖6A及圖6B所示之直鏈狀低密聚乙烯層7-1,7-2。圖8係顯示使用3台押出機通過多層環狀模113來下吹並藉由水冷膨脹114來製膜之範例,但多層膜之製造方法可使用多層膨脹法、多層T模法等,並未有特別限制。
(2)配向工序中,係將上述製膜後的環狀多層膜切割為2片膜F,F,通過具有紅外線加熱器、熱風送入機等之爐體115內,加熱至既定溫度,並使用鏡面處理後之冷卻滾輪來對初始尺寸以配向倍率3~15,較佳為5~12,更佳為6~10進行滾輪配向。延伸倍率未達3倍時,會有機械強度不充分之虞。另一方面,延伸倍率超過15倍時,以通常方法將會難以延伸,會產生需要高價裝置等的問題。延伸較佳是以多段來進行以防止延伸紋。上述配向溫度係中心層之熱可塑性樹脂的熔點以下,通常為20~160℃,較佳為60~150℃,更佳為90~140℃的範圍,以多段進行較佳。
(3)分裂(割纖)工序中,係將上述配向後的多層膜以高速旋轉的分裂器(旋轉刃)116來滑動接觸,以對膜做分裂處理(割纖化)。分裂方法除上述外,亦可為將單軸配向後之多層膜敲打的方法、扭轉的方法、滑動擦過(摩擦)的方法、刷磨方法等之機械方法,或藉由氣噴法、超音波法、雷射法等以形成無數微細切痕的方法。該等中,尤其以旋轉式機械方法較佳。此般旋轉式機械方法舉出有螺攻式分裂器、銼刀狀粗面體分裂器、針輪狀分裂器等各種形狀的分裂器。例如,螺攻式分裂器係使用具有一般為5角或6角的角形,且每1英吋有10~150,較佳為15~100道的螺紋者。又,銼刀狀粗面體分裂器可使用日本實公昭51-38980號公報所記載者。銼刀狀粗面體分裂器係將圓形剖面軸的表面加工為鐵工用的圓銼刀或類似於其之粗面體,於其面等間距地附有2道螺旋槽者。該等之具體物舉出有美國專利第3,662,935號、美國專利第3,693,851號等所揭示者。製作上述分裂網2之方法雖未特別限制,
但較佳係舉出有將分裂器配置在押輥間,對單軸配向後之多層膜施以張力並移動,以高速旋轉的分裂器來滑動接觸而分裂並網狀化之方法。
上述分裂工序中的膜移動速度通常為1~1000m/分鐘,較佳為10~500m/分鐘。又,分裂器的轉速(周速度)可依膜的物性、移動速度、作為目的之分裂網2的性狀等來適當選擇,但通常為10~5000m/分鐘,較佳為50~3000m/分鐘。
此般割纖所形成之膜在以所欲擴幅後,經由熱處理工序117而在(4)捲繞工序118中捲繞為既定長度,作為網狀不織布1用之原料一側的單軸配向體之分裂網2來加以供給。
圖9係顯示網狀不織布1的製造方法之概略圖,係用以說明含有層積在圖8作為捲繞體之分裂網2及凹槽網3之工序的製造方法之圖式。如圖9所示,主要係含有(1)成為凹槽網3原料之多層膜的製膜工序、(2)相對多層膜之長度方向略直角地進行凹槽處理之凹槽工序、(3)多層凹槽膜之單軸配向工序以及(4)於單軸配向所得之凹槽網3層積分裂網2並熱壓著之壓著工序。
以下將說明各工序。圖9中,(1)多層膜的製膜工序中,係供給熱可塑性樹脂至主押出機311,將直鏈狀低密度聚乙烯供給至副押出機312,將主押出機311所押出之熱可塑性樹脂作為內層,將副押出機312所押出之直鏈狀低密度聚乙烯作為外層,藉由膨脹成形來製作2層膜。於是,熱可塑性樹脂便會構成圖7A及圖7B所示之熱可塑性樹脂層6’,直鏈狀低密度聚乙烯便會構成圖7及圖7B所示之直鏈狀低密度聚乙烯層7-1’,7-2’。圖9係顯示使用2台押出機通過多層環狀模313來下吹並藉由水冷膨脹314來製膜之範例。多層膜之製造方法與上述圖8之範例同樣地,可使用多層膨脹法、多層T模法等,並未有特別限制。
(2)凹槽工序中,係將上述製膜後的多層膜夾扁,接著藉由壓延來微配向,以相對於行進方向而直角地呈千鳥格紋狀般地置入橫凹槽315。上述凹槽方法舉出有以剃刀刃或高速旋轉刃般的銳利刃尖來切割的方法、以切割刃、剪切刃等來形成凹槽的方法等,最佳是以熱刃(加熱切割器)來形成凹槽的方法。此般熱刃範例揭示於日本特公昭
61-11757號、美國專利第4,489,630號,同第2,728,950號。
(3)配向工序中,係對進行上述凹槽處理後的多層膜於寬度方向施以單軸配向316。配向方法舉出有拉幅法、滑輪法等,由於裝置小型化會較為經濟,故較佳為滑輪法。滑輪法舉出有英國專利第849,436號及日本特公昭57-30368號所揭示之方法。配向溫度等條件則與圖8的情況相同。
以上述所得之單軸配向體的凹槽網3(橫網)會被搬送至(4)熱壓著工序317。另一方面,以圖8方法所製造之單軸配向體的分裂網2(縱網)會從原料輸出滾輪210輸出,以既定的供給速度行進而送交至擴幅工序211,藉由前述擴幅機擴幅至數倍,依需要來進行熱處理。將此縱網層積於該橫網而送交至熱壓著工序317,於此處將縱網及橫網以配向軸交叉之方式層積而熱壓著。具體而言,係在外周面為鏡面之熱滾筒317a與鏡面滾輪317b,317c之間依序引導縱網2及橫網3,並對該等施壓來相互熱壓著而為一體化。藉此,鄰接之縱網2及橫網3的接觸部位彼此便會全面性地面接著。經過目視等的缺陷檢查後,便可搬送至捲繞工序318而成為網狀不織布1之捲繞體(製品)。
<第2網狀構造體:將分裂網經緯層積所構成的不織布>
第2網狀構造體為網狀不織布,係將縱向單軸延伸之多層膜割纖後,將擴幅所得之單軸配向體以配向方向交叉之方式,較佳地為配向方向略正交之方式經緯層積所構成。亦即,第2網狀構造體中,所層積的單軸配向體兩者均係由第1網狀構造體中所說明之分裂網2所構成的網狀不織布。
圖10係就第2網狀構造體之不織布的製造方法來加以說明的概略圖。此網狀不織布係將圖6A及圖6B所示之分裂網2以2片經緯層積者。圖10中,係將圖8所示般製造之分裂網2-1(縱網)從原料輸出滾輪410輸出,以既定供給速度行進而送交至擴幅工序411,藉由擴幅機(未圖示)擴幅至數倍,依需要進行熱處理。
將其他分裂網2-2(橫網)與縱網同樣地由原料輸出滾輪510輸出,以既定供給速度行進而送交至擴幅工序511,藉由擴幅機(未圖示)擴幅
至數倍,依需要進行熱處理後,裁切為等同於縱網2-1寬度之長度,相對於縱網之行進膜而從直角方向來加以供給,在層積工序412中透過各接著層來使得各網之配向軸以相互正交之方式來經緯層積。將經緯層積後的縱網2-1及橫網2-2在熱壓著工序417中,在外周面為鏡面之熱滾筒417a與鏡面滾輪417b,417c之間依序引導而施以按壓。藉此,縱網2-1及橫網2-2便會相互熱壓著而一體化。又,鄰接之縱網2-1及橫網2-2的接觸部位彼此會全面性地面接著。將如此一體化後的縱網2-1及橫網2-2在捲繞工序418捲繞,而成為經緯層積網狀不織布之捲取體。
如上述般製造之第2網狀構造體亦是在單位面積質量、縱向及橫向兩者之拉伸強度、直鏈狀低密度聚乙烯層之厚度、接著力上具備與第1網狀構造體相同的數值特性,如第1實施形態中所說明般地,藉由與尼龍製膜貼合來達成同樣的效果。
<第3網狀構造體:單軸配向帶體所構成之網狀不織布及織布>
第3網狀構造體係將單軸配向帶體經緯層積所構成之不織布或織成的織布。單軸配向帶體係使用熱可塑性樹脂層與直鏈狀低密度聚乙烯層,將至少2層多層膜於縱或橫向單軸配向,並裁切而成為多層的延伸帶體。
然後,第3網狀構造體係使兩個單軸配向體兩者由複數單軸配向帶體群所構成。如圖11所示,在不織布9的情況,係使得複數單軸配向帶體群8,8,...以延伸方向會略正交之方式來經緯層積,並熔接或接著。亦即,鄰接且交叉之單軸配向帶體8的接觸部位彼此係呈面接著。
另一方面,如圖12所示,在織布10的情況,係以使得複數單軸配向帶體群8,8,...為經絲,複數單軸配向帶體群8,8,...為緯絲之方式,以任意的織法所織成,並熔接或接著。織布10中,單軸配向帶體8彼此係相互正交,因此,配向軸T彼此會相互呈正交。又,織布10中,鄰接且交叉之單軸配向帶體8的接觸部位彼此係呈面接著。
單軸配向帶體係與第1網狀構造體中所說明的分裂網2同樣地,藉由多層膨脹法或多層T模法等的壓出成形,來製造2層或3層構造
之生膜,可於縱向單軸延伸3~15倍,較佳為3~10倍後,沿著延伸方向以例如2mm~7mm之寬度裁切來加以製造。或是,可同樣地製造2層或3層構造之生膜,沿著機械方向以同樣的寬度裁切後,於縱向單軸延伸3~15倍,較佳是3~10倍來加以製造。此般單軸配向帶體中,延伸方向(配向方向)係一致於帶體的長邊方向。
層積此般單軸配向帶體所構成之不織布而成的網狀構造體中,係將經絲的複數單軸配向帶體以固定間隔來平行排列,並將此作為一邊的單軸配向體。相對於此,另邊的單軸配向體係將緯絲的其他複數單軸配向體同樣地以固定間隔來平行地排列,而層積為單軸配向帶體群。此處所稱之經絲、緯絲係為了定義兩者相對關係而使用者,經緯可互相交換。此時,單軸配向帶體群與單軸配向帶體群係以其長邊方向,亦即配向方向會略呈正交之方式來加以層積。然後,藉由將經絲與緯絲的接觸面加熱熔接,便形成為第3網狀構造體之網狀不織布。此情況,熱熔接或接著的樣態係同樣於第1網狀構造體。
另外,在單軸配向帶體係由熱可塑性樹脂層及直鏈狀低密度聚乙烯層之2層所構成的情況,係以讓緯絲之直鏈狀聚乙烯層與經絲接觸的方式來加以層積。為經絲之單軸配向帶體與為緯絲之單軸配向帶體只要滿足前述單軸配向體之組成、層厚等的條件,其組成及厚度、寬度、帶體間距離可相同亦可不同。織布除了取代將複數單軸配向帶體加以層積,而是改為織成之外,可同樣地加以製造。
第3網狀構造體亦是在單位面積質量、拉伸強度、直鏈狀低密度聚乙烯層厚度、單軸配向體間之接著力上具備與第1網狀構造體相同的特性,如第1實施形態中所說明般地,藉由與尼龍製膜貼合來達成相同效果。另外,本例中,單軸配向體間的接著力係指為經絲之單軸配向帶體群與為緯絲之單軸配向帶體群之接著力,此數值亦如同第1網狀構造體所例示說明之範圍。拉伸強度係朝為經絲之單軸配向帶體的配向方向,或為緯絲之單軸配向帶體之方向的至少一邊,或該等兩邊之拉伸強度。
<第4網狀構造體:分裂網與單軸配向帶體的網狀不織布>
第4網狀構造體係層積:具備有相互平行延伸之幹纖維與連接鄰接之上述幹纖維彼此的枝纖維之單軸配向體;以及單軸配向帶體群層,所構成的不織布。
第4網狀構造體的說明中,係就層積3層單軸配向體的形態來加以說明。亦即,本發明之第4網狀構造體典型地,係由以分裂網2為第1單軸配向體,以複數單軸配向帶體群為第2單軸配向體來加以構成,進一步地,包含有與構成該第2單軸配向體之單軸配向帶體群呈斜交之複數單軸配向帶體群所構成的第3單軸配向體。
此般網狀構造體係層積:具備相互平行延伸之幹纖維與連接鄰接之該幹纖維彼此之枝纖維的分裂網、斜交於該分裂網之配向方向且由相互平行延伸之單軸配向帶體群所構成之第1單軸配向帶體群;以及從相反於該第1單軸配向帶體群之方向斜交於該分裂網之配向方向且由相互平行延伸的第2第2單軸配向帶體群所構成之第2單軸配向帶體群,所構成之不織布。第4網狀構造體中,係相對於分裂網,以相對於其配向方向為α’之角度來層積有單軸配向帶體。然後,以斜交於單軸配向帶體,且相對於配向軸L為α之角度來層積單軸配向帶體。此情況,α與α’可相同亦可不同,只要為例如45~60度即可。
關於構成第4網狀構造體之分裂網、單軸配向帶體的製造方法係如同第1、第3網狀構造體所說明者,可同樣地加以製造。藉由將該等層積、將接觸部熔接或接著便可得到第4網狀構造體。
第4網狀構造體中,單軸配向帶體以外的單軸配向體除了已詳述之分裂網以外,亦可使用在例如具備與分裂網相同構成之生膜於寬度方向形成多數凹槽後,於寬度方向以與分裂網同樣的延伸倍率所延伸而得者,亦即,在俯視觀之的情況,係使用具有相對於分裂網旋轉±90°之圖案,或類似於其之圖案的分裂網。此情況,可使得分裂網與第1單軸配向帶體群層、第2單軸配向帶體群層相對於配向方向斜交而與上述同樣的樣態來加以層積。或者,將分裂網2b或是凹槽網與第1單軸配向帶體群層之2層,以分裂網2b或是凹槽網之配向方向與單軸配向帶體群層之長邊方向交叉之方式來層積為網狀構造體。
第4網狀構造體中,亦是在單位面積質量、拉伸強度、直鏈狀低密度聚乙烯層厚度、單軸配向體間之接著力上具備與第1網狀構造體相同的特性,如第1實施形態中所說明般地,藉由與尼龍製膜貼合來達成相同效果。單軸配向體間的接著力係指分裂網或凹槽網,與一層或兩層之單軸配向帶體群層之所有單軸配向體間的接著力,此數值亦具有如同第1網狀構造體所例示說明之範圍的數值特性。拉伸強度係朝分裂網或凹槽網的配向方向,或單軸配向帶體群之配向方向的任一方向,或兩邊方向之拉伸強度。此拉伸強度數值如同第1網狀構造體所例示說明之範圍。
[驗證結果]
圖13係顯示本發明第2實施型態相關之酒精蒸發劑包材中,準備材料構成相異的複數樣品,來測量積層強度、熱封強度(層間剝離的有無)、透濕度及乙醇穿透度之結果。
樣品S1~S3係分別為對應於本發明第2實施型態者,係以東洋紡公司製的HARDEN(註冊商標)(厚度12μm的無孔尼龍膜)作為尼龍製膜來與網狀構造體相貼合而製作成密封材的袋體來製作酒精蒸發劑包材。該等樣品S1~S3中,係將Japan Polyethylene Corporation製的HY444(高密度聚乙烯:稱作樹脂A)使用於網狀構造體中一邊之單軸配向體(為分裂網2的主層之熱可塑性樹脂層6),並藉由水冷膨脹法來將作為接著層7-1,7-2之住友化學公司製的CB2001(直鏈狀低密度聚乙烯:稱作樹脂B)層積於該熱可塑性樹脂層6的雙面。分裂網2的製作中,朝縱向之延伸倍率為8倍。
為另邊之單軸配向體的凹槽網3中,亦是將樹脂A使用於為主層之熱可塑性樹脂層6’,樣品S1、S2係以水冷膨脹法來將作為接著層7-1’,7-2’之樹脂B層積於該熱可塑性樹脂層6’的雙面,樣品S3係以水冷膨脹法來將作為接著層7-1’之樹脂B層積於該熱可塑性樹脂層6’的單面。凹槽網3的製作中,朝寬度方向之延伸倍率與朝縱向之延伸倍率相同。又,分裂網2與凹槽網3係以121℃來進行熱熔接而相接合。
樣品S1~S3中,各層的厚度(延伸前厚度/延伸後厚度)與單位面積質
量分別如下表1所示。此處,「外層厚度」係指每一面的接著層厚度。又,係使用使網狀構造的細密性較高,且纖維彼此的寬度細密化而稱作細網(fine mesh)的纖維間隔為2mm以下的網狀構造體。此外,樹脂B為藉由茂金屬觸媒所聚合之具有長鏈分支的直鏈狀低密度聚乙烯。
藉由熱積層法來將無孔尼龍膜分別貼合於上述厚度或單位面積質量相異的3種網狀構造體來製作密封材11。使網狀構造體12側的面為內側來將該密封材11對折,並使網狀構造體12的直鏈狀低密度聚乙烯層作為熱封層來將正交於折線之二邊11a、11c接著而成為袋狀。然後,將酒精蒸發劑16內包在該袋內之狀態下,使網狀構造體12的直鏈狀低密度聚乙烯層作為熱封層來將剩餘的一邊11b接著,來製作密封有酒精蒸發劑16之3種樣品S1~S3。
將該樣品S1的無孔尼龍膜與網狀構造體MSa形成為袋狀時的熱封強度為10N,無層間剝離。乙醇穿透度為510g/m2.24hr,作為酒精蒸發劑包材而為良好的特性。
又,將樣品S2的無孔尼龍膜與網狀構造體MSb形成為袋狀時的熱封強度為8N,無層間剝離。乙醇穿透度為450g/m2.24hr,作為酒精蒸發劑包材而為良好的特性。
再者,將樣品S3的無孔尼龍膜與網狀構造體MSc形成為袋狀時的熱封強度為10N,無層間剝離。乙醇穿透度為480g/m2.24hr,作為酒精蒸發劑包材仍為良好的特性。
相對於此,樣品S4~S6分別為比較例,除了使用日本Japan Polyethylene Corporation製的LE541H(低密度聚乙烯:樹脂C)來取代樹脂B而作為接著層以外,層構成、延伸倍率、熱熔接溫度皆係分別以相同於樣品S1~S3的條件來製作網狀構造體。樣品S4~S6中,各層的厚度
如下表2所示。又,與樣品S1~S3同樣地將東洋紡公司製的HARDEN(註冊商標)(厚度12μm的無孔尼龍膜)貼合於該等網狀構造體來製造密封材,並製成袋體來製作酒精蒸發劑包材。
將樣品S4的無孔尼龍膜與網狀構造體MSd形成為袋狀時的熱封強度為5N,有層間剝離。乙醇穿透度為200g/m2.24hr。因此,強度較低,作為酒精蒸發劑包材仍為不充分的特性。
又,將樣品S5的無孔尼龍膜與網狀構造體MSe形成為袋狀時的熱封強度為5N,有層間剝離。乙醇穿透度為240g/m2.24hr。強度較樣品S4不足,不僅是作為酒精蒸發劑包材,且作為密封材,亦為不充分的特性。
再者,將樣品S6的無孔尼龍膜與網狀構造體MSf形成為袋狀時的熱封強度為4N,有層間剝離。乙醇穿透度為280g/m2.24hr。與樣品S5同樣地強度不足,不僅是作為酒精蒸發劑包材,且作為密封材,亦為不充分的特性。
如上所述,樣品S1~S3係充分地滿足作為酒精蒸發劑包材的要求特性。另一方面,樣品S4雖可確保大致同等單位面積質量、拉伸強度,但熱封強度較低、會發生層間剝離,而無法作為酒精蒸發劑包材來被加以利用。樣品S4、S5不僅是熱封強度低、會發生層間剝離,且積層強度不足,不僅是作為酒精蒸發劑包材,且作為密封材亦在實用上不具耐受性。
11:密封材
12:網狀構造體
12a、13a:表面區域
13:尼龍製膜(聚醯胺系樹脂膜)
14:印刷面
Claims (5)
- 一種酒精蒸發劑包材,係內包有酒精蒸發劑且經熱封之袋狀的酒精蒸發劑包材;具備:網狀構造體,係含有2個以上包含有熱可塑性樹脂層與層積於該熱可塑性樹脂層的至少單面且分子鏈中具有長鏈分支之直鏈狀低密度聚乙烯層之單軸配向體,以該2個以上單軸配向體的配向軸呈交叉之方式,而透過該直鏈狀低密度聚乙烯層來將該2個以上單軸配向體加以層積或織成所構成;聚醯胺系樹脂膜,係介設有該直鏈狀低密度聚乙烯層而層積於該網狀構造體,且乙醇穿透度為300g/m2.24hr以上;印刷面,係形成於該聚醯胺系樹脂膜之與該網狀構造體的層積面側;以及極性官能基,係分別被導入至該網狀構造體與該聚醯胺系樹脂膜的層積面處之該網狀構造體及該印刷面;該網狀構造體與該聚醯胺系樹脂膜係藉由該網狀構造體之熔融後的該直鏈狀低密度聚乙烯層而被接著;以該網狀構造體側作為袋的內面而內包有酒精蒸發劑,並以該網狀構造體的該直鏈狀低密度聚乙烯層作為熱封層來將該網狀構造體彼此互相接著而形成為袋狀。
- 如申請專利範圍第1項之酒精蒸發劑包材,其中該直鏈狀低密度聚乙烯層係包含有以茂金屬觸媒所聚合之直鏈狀低密度聚乙烯,該網狀構造體係透過該直鏈狀低密度聚乙烯層來將該2個以上單軸配向體加以織成所構成。
- 如申請專利範圍第1或2項之酒精蒸發劑包材,其中該單軸配向體係包含有層積於該熱可塑性樹脂層的一面之第1直鏈狀低密度聚乙烯層,與層積於該熱可塑性樹脂層的另一面之第2直鏈狀低密度聚乙烯層,該第1及第2直鏈狀低密度聚乙烯層係包含有熔體流動速率為0.5~10g/10min,密度為0.910~0.940g/cm3之直鏈狀低密度聚 乙烯。
- 如申請專利範圍第1或2項之酒精蒸發劑包材,其中該2個以上單軸配向體係單軸配向網狀膜或單軸配向帶體的至少其中一者。
- 如申請專利範圍第1或2項之酒精蒸發劑包材,其中該網狀構造體係滿足單位面積質量為5~70g/m2,該直鏈狀低密度聚乙烯層的厚度為2~10μm,該單軸配向體間的接著力為10~60N,拉伸強度為20~600N/50mm的特性。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0976436A (ja) * | 1995-09-12 | 1997-03-25 | Nippon Petrochem Co Ltd | 一軸配向体、積層体、不織布および織布ならびにそれらを用いた強化積層体 |
JP2003211604A (ja) * | 2002-01-17 | 2003-07-29 | Idemitsu Unitech Co Ltd | 包装シート、アルコール蒸散剤用包装袋および食品用包装袋 |
JP2006008205A (ja) * | 2004-06-28 | 2006-01-12 | Nisseki Plasto Co Ltd | 食品と同梱される非食品用の包装袋 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5954558A (ja) * | 1982-09-24 | 1984-03-29 | 株式会社トクヤマ | 複合シ−トの製造方法 |
JP2003340950A (ja) * | 2002-05-28 | 2003-12-02 | Nippon Petrochemicals Co Ltd | 通気性包装材料および包装体 |
JP2004009510A (ja) * | 2002-06-06 | 2004-01-15 | Nippon Petrochemicals Co Ltd | ヒートシール性を有する通気性包装材料および包装体 |
JP3860547B2 (ja) * | 2003-02-12 | 2006-12-20 | 大江化学工業株式会社 | 品質保持剤包装体 |
US7837388B1 (en) * | 2003-05-09 | 2010-11-23 | Plaspack Usa, Inc. | Multi-material vertical form, fill and seal bag |
JP4679039B2 (ja) * | 2003-05-20 | 2011-04-27 | 出光ユニテック株式会社 | 包装材料、当該包装材料からなる包装袋、及び当該包装材料の製造方法 |
JP5070560B2 (ja) * | 2008-10-31 | 2012-11-14 | Jx日鉱日石エネルギー株式会社 | 通気性包装材料及び包装体 |
JP5377370B2 (ja) * | 2009-03-16 | 2013-12-25 | 日本ポリエチレン株式会社 | 積層体、それを用いた発泡加工紙並びに断熱容器 |
JP5986975B2 (ja) * | 2013-10-18 | 2016-09-06 | Jxエネルギー株式会社 | 不織布及び強化積層体 |
CN106255595A (zh) * | 2014-04-28 | 2016-12-21 | 三得为株式会社 | 多层密封膜 |
JP6502132B2 (ja) * | 2015-03-17 | 2019-04-17 | Jxtgエネルギー株式会社 | 耐油性通気性包装材料 |
-
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-
2017
- 2017-03-31 WO PCT/JP2017/013700 patent/WO2017171036A1/ja active Application Filing
- 2017-03-31 US US16/084,809 patent/US20190077572A1/en not_active Abandoned
- 2017-03-31 TW TW106111051A patent/TWI709491B/zh active
- 2017-03-31 CN CN201780017799.7A patent/CN108778735A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0976436A (ja) * | 1995-09-12 | 1997-03-25 | Nippon Petrochem Co Ltd | 一軸配向体、積層体、不織布および織布ならびにそれらを用いた強化積層体 |
JP2003211604A (ja) * | 2002-01-17 | 2003-07-29 | Idemitsu Unitech Co Ltd | 包装シート、アルコール蒸散剤用包装袋および食品用包装袋 |
JP2006008205A (ja) * | 2004-06-28 | 2006-01-12 | Nisseki Plasto Co Ltd | 食品と同梱される非食品用の包装袋 |
Also Published As
Publication number | Publication date |
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JP6668146B2 (ja) | 2020-03-18 |
TW201806737A (zh) | 2018-03-01 |
CN108778735A (zh) | 2018-11-09 |
WO2017171036A1 (ja) | 2017-10-05 |
JP2017177713A (ja) | 2017-10-05 |
US20190077572A1 (en) | 2019-03-14 |
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